Ventilation housing to be mounted on a ceiling or wall



FIG. 1 is a top and right side perspective view of a ventilation housing to be mounted on a ceiling or wall, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a left-hand side elevation view thereof, the right side being a mirror image of that shown;

FIG. 7 is a front top and right-side perspective view of a ventilation housing to be mounted on a ceiling or wall, showing a second embodiment of my new design;

FIG. 8 is an enlarged top plan view of FIG. 7;

FIG. 9 is a bottom plan view of FIG. 7;

FIG. 10 is a front elevation view of FIG. 7;

FIG. 11 is a rear elevation view of FIG. 7; and,

FIG. 12 is a left-side elevation view of FIG. 7, the right side being a mirror image of that shown. 

The ornamental design for a ventilation housing to be mounted on a ceiling or wall, as shown and described. 